Adding Material To Distilland Except Water Or Steam Per Se Patents (Class 203/50)
  • Publication number: 20150101922
    Abstract: A system for molecular targeting and separating includes a microwave energy source; a vapor source; a column configured and positioned to receive microwave energy from the microwave energy source and vapor from the vapor source; and a condenser, the condenser in communication with the column, the condenser configured to condense the vapor after the vapor receives the microwave energy.
    Type: Application
    Filed: December 16, 2014
    Publication date: April 16, 2015
    Inventor: Donald W. Ramer
  • Patent number: 8968523
    Abstract: A process for recovering butanol from a mixture of a water-immiscible organic extractant, water, butanol, and optionally a non-condensable gas, is provided. The butanol is selected from 1-butanol, isobutanol, and mixtures thereof. An overhead stream from a first distillation column is decanted into two liquid phases. The wet butanol phase is refined in a second distillation column; the aqueous phase is returned to the first distillation column. A portion of the wet butanol phase from the decanter is also returned to the first distillation column. The extractant may be C7 to C22 fatty alcohols, C7 to C22 fatty acids, esters of C7 to C22 fatty acids, C7 to C22 fatty aldehydes, and mixtures thereof.
    Type: Grant
    Filed: July 13, 2010
    Date of Patent: March 3, 2015
    Assignee: Butamax Advanced Biofuels LLC
    Inventors: Yihui Tom Xu, William D. Parten
  • Patent number: 8968522
    Abstract: A process for recovering butanol from a mixture of a water-immiscible organic extractant, water, butanol, and optionally a noncondensable gas, is provided. The butanol is selected from 1-butanol, isobutanol, and mixtures thereof An overhead stream from a first distillation column is decanted into two liquid phases. The wet butanol phase is returned to the first distillation column as reflux. A bottom stream from the first distillation column is refined in a second distillation column to obtain a second overhead stream and a second bottoms stream. The extractant may be C7 to C22 fatty alcohols, C7 to C22 fatty acids, esters of C7 to C22 fatty acids, C7 to C22 fatty aldehydes, and mixtures thereof.
    Type: Grant
    Filed: July 13, 2010
    Date of Patent: March 3, 2015
    Assignee: Butamax Advanced Biofuels LLC
    Inventors: Yihui Tom Xu, William D. Parten
  • Publication number: 20140374235
    Abstract: Embodiments of the invention are directed toward a novel pressurized vapor cycle for distilling liquids. In an embodiment of the invention, a liquid purification system is revealed, including the elements of an input for receiving untreated liquid, a vaporizer coupled to the input for transforming the liquid to vapor, a head chamber for collecting the vapor, a vapor pump with an internal drive shaft and an eccentric rotor with a rotatable housing for compressing vapor, a condenser in communication with the vapor pump for transforming the compressed vapor into a distilled product, and an electric motor with motor rotor and magnets hermetically sealed within the fluid pressure boundary of the distillation system.
    Type: Application
    Filed: September 8, 2014
    Publication date: December 25, 2014
    Inventors: Jason A. Demers, Scott A. Leonard, Kingston Owens
  • Patent number: 8906205
    Abstract: A process for separating ethylene glycol and 1,2-butanediol. A material flow containing ethylene glycol and 1,2-butanediol gets into the lower-middle part of the azeotropic rectification column C3 after the light components are removed by the separating columns C1 and C2, wherein the ethylene glycol and the azeotropic agent added from the top of the column form azeotrope which is distilled out from the top of the column and gets into the phase separator D1 after being condensed, the upper phase enriched with azeotropic agent after the phase was separated returns to the top of the column to continue to participate in azeotropy, and the lower phase enriched with ethylene glycol gets into the fourth separating column C4 to be refined to obtain the ethylene glycol product.
    Type: Grant
    Filed: January 8, 2013
    Date of Patent: December 9, 2014
    Assignees: China Petroleum & Chemical Corporation, Shanghai Research Institute of Petrochemical Technology SINOPEC
    Inventors: Jian Xiao, Yanzi Guo
  • Patent number: 8895779
    Abstract: A process for making MAA from a clarified DAA-containing fermentation broth includes (a) distilling the broth to form an overhead that includes water and ammonia, and a liquid bottoms that includes MAA, at least some DAA, and at least about 20 wt. % water; (b) cooling the bottoms to a temperature sufficient to cause the bottoms to separate into a DAA-containing liquid portion in contact with a MAA-containing solid portion that is substantially free of DAA; (c) separating the solid portion from the liquid portion; and (d) recovering the solid portion.
    Type: Grant
    Filed: April 14, 2011
    Date of Patent: November 25, 2014
    Assignee: BioAmber Inc.
    Inventors: Olan S. Fruchey, Leo E. Manzer, Dilum Dunuwila, Brian T. Keen, Brooke A. Albin, Nye A. Clinton, Bernard D. Dombek
  • Patent number: 8815058
    Abstract: Arsenic can be an impurity in phosphorous pentafluoride production processes. It is desirable to remove arsenic from phosphorous pentafluoride prior to using of the phosphorous pentafluoride in the production of lithium hexafluorophosphate. The present technology provides methods of removing arsenic from phosphorous pentafluoride by extractive distillation.
    Type: Grant
    Filed: April 29, 2011
    Date of Patent: August 26, 2014
    Assignee: Honeywell International Inc.
    Inventors: Ryan J. Hulse, Bernie E. Pointner
  • Patent number: 8771476
    Abstract: High temperatures and oxygen exposure during extractive distillation can result in polymerization of vinyl aromatic compounds. In various embodiments, the present disclosure relates to methods for inhibiting polymerization of vinyl aromatic compounds during extractive distillation. In various embodiments, the methods include a) providing a mixture containing at least one vinyl aromatic compound, b) adding at least one dinitrophenol inhibitor to the mixture, and c) after step b), performing an extractive distillation on the mixture to isolate the at least one vinyl aromatic compound. Purified styrene can be isolated by the methods described herein. In some embodiments, the dinitrophenol inhibitor is 2-sec-butyl-4,6-dinitrophenol (DNBP).
    Type: Grant
    Filed: February 15, 2010
    Date of Patent: July 8, 2014
    Assignee: GTC Technology LP
    Inventors: Amy Sealey, George A. Ball, B. Bryant Slimp, Jr.
  • Publication number: 20140166263
    Abstract: Systems and methods generate steam in hydrocarbon recovery operations and may further enable emulsion separation and product upgrading. The methods rely on indirect boiling of water by contact with a thermal transfer liquid heated to a temperature sufficient to vaporize the water. Examples of the liquid include oils, recovered hydrocarbons, liquid metals and brine. Heating of the liquid may utilize circulation of the liquid across or through a furnace, heat exchangers, or a gas-liquid contactor supplied with hot gas. Further, a solvent for bitumen introduced into the water may also vaporize upon contact with the thermal transfer liquid.
    Type: Application
    Filed: December 5, 2013
    Publication date: June 19, 2014
    Applicant: CONOCOPHILLIPS COMPANY
    Inventors: Peter N. SLATER, Christopher R. COPELAND
  • Publication number: 20140158521
    Abstract: Methods and apparatuses for separating desorbent from an extract stream and a raffinate stream are provided. An exemplary method includes fractionating a first stream in a first fractionation zone into a first fractionation overhead stream and a first fractionation bottom stream. The first stream includes an extract stream including a desorbent from an adsorption zone. A second stream different from the first stream is fractionated in a second fractionation zone into a second fractionation overhead stream and a second fractionation bottom stream. The second fractionation zone is in liquid isolation from and in vapor communication with the first fractionation zone. The second stream includes a raffinate stream including the desorbent from the adsorption zone. The first and second fractionation bottom streams are separately removed from the respective fractionation zones.
    Type: Application
    Filed: December 12, 2012
    Publication date: June 12, 2014
    Applicant: UOP LLC
    Inventors: David William Ablin, Jason T. Corradi
  • Publication number: 20140124358
    Abstract: A process and system for separating butenes and butanes by extractive distillation using a polar solvent is disclosed. The process may include: contacting a hydrocarbon mixture including butanes and butenes with a lean solvent mixture in an extractive distillation column to form an enriched solvent fraction comprising butenes; recovering an overheads fraction comprising butanes and a bottoms fraction from the extractive distillation column; feeding the bottoms fraction to a stripper including a stripping section and a wash section; recovering the lean solvent mixture as a bottoms fraction and a stripper overheads fraction comprising butenes and water from the stripper; condensing the overheads fraction to form a water fraction and a product butenes fraction; feeding water as reflux to a top of the stripper wash section; feeding at least a portion of the condensed water fraction intermediate the top and bottom of the stripper wash section as a second reflux.
    Type: Application
    Filed: October 21, 2013
    Publication date: May 8, 2014
    Applicant: LUMMUS TECHNOLOGY INC.
    Inventors: Kevin John Schwint, Robert J. Brummer
  • Patent number: 8628644
    Abstract: The present invention relates to a process for separating close-boiling and azeotropic components of mixtures, wherein said mixtures contain at least one hydrofluorocarbon compound, using at least one ionic liquid.
    Type: Grant
    Filed: September 22, 2006
    Date of Patent: January 14, 2014
    Assignee: E I du Pont Nemours and Company
    Inventors: Mark B. Shiflett, Akimichi Yokozeki
  • Publication number: 20140012052
    Abstract: Provided are azeotropic and azeotrope-like compositions of 2-chloro-3,3,3-trifluoropropene (HCFO-1233xf) and hydrogen fluoride (HF). Such azeotropic and azeotrope-like compositions are useful as intermediates in the production of 2,3,3,3-tetrafluoropropene (HFO-1234yf).
    Type: Application
    Filed: September 10, 2013
    Publication date: January 9, 2014
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: HANG T. PHAM, DANIEL C. MERKEL, KONSTANTIN A. POKROVSKI, HSUEH S. TUNG, RAJIV R. SINGH
  • Publication number: 20130334104
    Abstract: A method of distilling a chemical mixture, the method including receiving, in a vessel comprising a complex, the chemical mixture comprising a plurality of fluid elements, applying electromagnetic (EM) radiation to the complex, wherein the complex absorbs the EM radiation to generate heat at a first temperature, transforming, using the heat generated by the complex, a first fluid element of the plurality of fluid elements of the chemical mixture to a first vapor element, and extracting the first vapor element from the vessel, where the complex is at least one selected from a group consisting of copper nanoparticles, copper oxide nanoparticles, nanoshells, nanorods, carbon moieties, encapsulated nanoshells, encapsulated nanoparticles, and branched nanostructures.
    Type: Application
    Filed: November 30, 2011
    Publication date: December 19, 2013
    Applicant: WILLIAM MARSH RICE UNIVERSITY
    Inventors: Nancy J. Halas, Peter Nordlander, Oara Neumann
  • Publication number: 20130306463
    Abstract: In general, the invention relates to a system. The system includes a heating fluid vessel (1604) that includes first fluid and a complex, where the complex receives electromagnetic (EM) radiation (1602), and where the complex absorbs the EM radiation to generate heat and where the heat increases a temperature of the first fluid to generate a first heated fluid (1606). The system further includes a heat exchanger (1608) adapted to receive the first heated fluid (1606) and complex in a first chamber, receive a mixture including a second fluid in a second chamber, and transfer the heat from the first fluid from the complex to the mixture to transform at least a portion of the target fluid of the mixture to a target vapor. The system further includes a condenser (1632) adapted to receive the target vapor, and condense the target vapor to generate target fluid (1636).
    Type: Application
    Filed: November 30, 2011
    Publication date: November 21, 2013
    Applicant: WILLIAM MARSH RICE UNIVERSITY
    Inventors: Nancy J. Halas, Peter Nordlander, Oara Neumann
  • Publication number: 20130284584
    Abstract: The present invention relates to a process for separating ethylene glycol and 1,2-butanediol. A material flow containing ethylene glycol and 1,2-butanediol gets into the lower-middle part of the azeotropic rectification column C3 after the light components are removed by the separating columns C1 and C2, wherein the ethylene glycol and the azeotropic agent added from the top of the column form azeotrope which is distilled out from the top of the column and gets into the phase separator D1 after being condensed, the upper phase enriched with azeotropic agent after the phase was separated returns to the top of the column to continue to participate in azeotropy, and the lower phase enriched with ethylene glycol gets into the fourth separating column C4 to be refined to obtain the ethylene glycol product.
    Type: Application
    Filed: January 8, 2013
    Publication date: October 31, 2013
    Inventors: Jian XIAO, Yanzi GUO
  • Patent number: 8551297
    Abstract: A process for extractive distillation, including: feeding a solvent to an extractive distillation column via a solvent feeding inlet, wherein the solvent has a feeding temperature 3.5˜22.5° C. higher than a top temperature of the extractive distillation column; feeding a mixture comprising a light component and a heavy component to the extractive distillation column via a mixture feeding inlet, wherein the light and heavy components are according to the volatility after adding the solvent, wherein the mixture is liquid, and the mixture feeding inlet is lower than the solvent feeding inlet; condensing a vapor generated by the mixture in an upper portion of the extractive distillation column to obtain the light component; and separating the solvent in a lower portion of the extractive distillation column to obtain the heavy component.
    Type: Grant
    Filed: August 5, 2008
    Date of Patent: October 8, 2013
    Inventor: Baojun Dong
  • Patent number: 8500961
    Abstract: Method of distilling mixtures comprising salts having a melting point of less than 200° C. at 1 bar (ionic liquids), wherein the mixtures additionally comprise an organic compound (called distillation aid below) which is not ionic has a molecular weight of less than 5000 has a boiling point which is at least 5° C. higher compared with the ionic mixtures included in the mixture.
    Type: Grant
    Filed: February 15, 2010
    Date of Patent: August 6, 2013
    Assignee: BASF SE
    Inventors: Guenter Forster, Vijay Narayanan Swaminathan
  • Publication number: 20130184488
    Abstract: Disclosed is a method for separating, with a multi-stage distillation column, a mixture containing an active hydrogen-containing compound (A) and a compound (B) that reversibly reacts with the active hydrogen containing compound (A), the method comprising distillation-separating the active hydrogen-containing compound (A) and the compound (B) with the multi-stage distillation column in the presence of an intermediate-boiling-point inactive compound (C) that has a normal boiling point between a normal boiling point of the active hydrogen-containing compound (A) and a normal boiling point of the compound (B) and is chemically inactive for both of the (A) and the compound (B).
    Type: Application
    Filed: October 4, 2011
    Publication date: July 18, 2013
    Applicant: ASAHI KASEI CHEMICALS CORPORATION
    Inventors: Masaaki Shinohata, Nobuhisa Miyake
  • Publication number: 20130053534
    Abstract: A process for distilling an aqueous NPG mixture comprising NPG, a tertiary amine, water and the adduct of tertiary amine and formic acid (amine formate), said distillation being performed in a distillation column, which comprises drawing off a gaseous stream in the upper region of the column and feeding it to two condensers connected in series, the first condenser being operated in such a way that a portion of the gaseous stream is condensed in the first condenser and the second condenser being operated in such a way that the uncondensed portion of the gaseous stream is essentially fully condensed in the second condenser, the condensed stream from the first condenser being recycled fully or partly as reflux into the column.
    Type: Application
    Filed: August 17, 2012
    Publication date: February 28, 2013
    Applicant: BASF SE
    Inventors: Helmut Kronemayer, Kai Stehmeier, Ralf Edinger, Stefan Rittinger, Michael Steiniger
  • Publication number: 20130001065
    Abstract: The present invention comprises a process for recovery of sulfolane used in a solvent-extraction or extractive-distillation process. A recovery column for the sulfolane solvent comprises a liquid-jet ejector for maintaining the needed vacuum conditions, preferably using water as the liquid.
    Type: Application
    Filed: June 28, 2011
    Publication date: January 3, 2013
    Applicant: UOP LLC
    Inventors: Deepak Bisht, Anup Dhaigude, Sandeep Gupta
  • Publication number: 20120323049
    Abstract: Recovery of ethanol from a crude ethanol product obtained from the hydrogenation of acetic acid using a low energy process and an entrainer. The crude ethanol product is separated in an distillation column to produce a distillate stream comprising the entrainer. The ethanol product is recovered from the residue stream.
    Type: Application
    Filed: June 16, 2011
    Publication date: December 20, 2012
    Applicant: CELANESE INTERNATIONAL CORPORATION
    Inventors: David Lee, Lincoln Sarager, Trinity Horton, Victor J. Johnston
  • Publication number: 20120312680
    Abstract: The disclosure relates to a process for separating propylene oxide for a crude propylene oxide stream, for example an intermediate stream from a PO/TBA process. The crude propylene oxide stream can be passed through an extractive distillation column. The distillation column is operated at a pressure in a range of greater than 25 up to 50 psig, and/or at a temperature in a range of from 70 to 150 degrees Celsius using C8-C20 paraffin as extractive solvent with an overhead distillate water wash drum. The crude propylene oxide stream include from 0.001 to 0.1 wt % methanol, based on the total composition of the crude propylene oxide stream. The systems, methods, and apparatuses can produce a propylene oxide stream having less formaldehyde and acetaldehyde than the prior art.
    Type: Application
    Filed: June 7, 2011
    Publication date: December 13, 2012
    Inventors: Xiangmin LI, David W. Leyshon, Te Chang
  • Publication number: 20120305382
    Abstract: The present disclosure relates to a process for separating a fluoroolefin from a mixture comprising hydrogen fluoride and fluoroolefin, comprising azeotropic distillation both with and without an entrainer. In particular are disclosed processes for separating any of HFC-1225ye, HFC-1234ze, HFC-1234yf or HFC-1243zf from HF.
    Type: Application
    Filed: August 16, 2012
    Publication date: December 6, 2012
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Jeffrey P. KNAPP, Barry Asher MAHLER, Donald J. TOTON
  • Publication number: 20120261252
    Abstract: Disclosed herein are processes for separation of 2,3,3,3-tetrafluoropropene and hydrogen fluoride using azeotropic distillation. Additionally, disclosed are processes for separating mixtures of 2,3,3,3-tetrafluoropropene, hydrogen fluoride and 1,1,1,2,3-pentafluoropropane (HFC-245eb) and/or 1,1,1,2,2-pentafluoropropane (HFC-245cb) by azeotropic distillation.
    Type: Application
    Filed: February 19, 2009
    Publication date: October 18, 2012
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventor: Jeffrey P. Knapp
  • Patent number: 8277615
    Abstract: The present invention relates to a method for removing volatile compounds from sparingly volatile fluids by means of rectification using an auxiliary and also to separation methods and chemical reactions in which sparingly volatile fluids are used, the purification of which is effected by means of rectification and using an auxiliary.
    Type: Grant
    Filed: March 21, 2006
    Date of Patent: October 2, 2012
    Assignee: Bayer Technology Services GmbH
    Inventors: Gerhard Ruffert, Oliver Pfohl, Marcus Grün
  • Patent number: 8252150
    Abstract: High purity 1,3 butadiene is recovered from a C4 fraction containing butadienes, butenes, butanes, and acetylenes that is generated from a steam cracker by extractive distillation operating with no reflux or greatly reduced reflux conditions. This no reflux (or minimum reflux) technique is generally applicable to any butadiene recovery process in which at least one extractive distillation column (EDC) is used to separate 1,3 butadiene from other C4 components in the mixture. For an ED process with two EDCs, significant reductions in total energy requirements in the both EDCs can be achieved by appropriate reductions in the reflux in each column. The performances of both EDCs are unaffected even when operating at no reflux.
    Type: Grant
    Filed: April 19, 2011
    Date of Patent: August 28, 2012
    Assignee: International Innotech Inc.
    Inventors: Kaochih Hsu, Kuiwu Li
  • Patent number: 8246792
    Abstract: Processes for making SA from either a clarified DAS-containing fermentation broth or a clarified MAS-containing fermentation broth that include distilling the broth under super atmospheric pressure at a temperature of >100° C. to about 300° C. to form an overhead that comprises water and ammonia, and a liquid bottoms that includes SA, and at least about 20 wt % water; cooling the bottoms to a temperature sufficient to cause the bottoms to separate into a liquid portion and a solid portion that is substantially pure SA; and separating the solid portion from the liquid portion. A method also reduces the broth distillation temperature and pressure by adding an ammonia separating and/or water azeotroping solvent to the broth.
    Type: Grant
    Filed: August 19, 2011
    Date of Patent: August 21, 2012
    Assignee: BioAmber S.A.S.
    Inventors: Olan S. Fruchey, Brian T. Keen, Brooke A. Albin, Nye A. Clinton, Dilum Dunuwila, Bernard D. Dombek
  • Publication number: 20120138841
    Abstract: Disclosed are azeotropic and azeotrope-like mixtures of (Z)-1-chloro-3,3,3-trifluoropropene (1233zd(Z)) and hydrogen fluoride. Such compositions are useful as an intermediate in the production of 1233zd(Z). The latter compound is useful as a nontoxic, zero ozone depleting fluorocarbon useful as a solvent, blowing agent, refrigerant, cleaning agent, aerosol propellant, heat transfer medium, dielectric, fire extinguishing composition and power cycle working fluid.
    Type: Application
    Filed: October 5, 2011
    Publication date: June 7, 2012
    Inventors: Ryan Hulse, Hang T. Pham
  • Publication number: 20120116140
    Abstract: The invention is a method for processing a mixture containing water, 3-methyl-1-butene and at least one other methylbutene. The method comprises primary distillation of the mixture, giving a gaseous primary overhead product containing methylbutene and water and a water-free primary bottom product containing 3-methyl-1-butene; condensation of the gaseous primary overhead product so as to give a condensate comprising a liquid aqueous phase and a liquid organic phase; separation of the condensate into a liquid aqueous phase and a liquid organic phase; discharge of the liquid aqueous phase; recirculation of the organic phase to the primary distillation; and finally secondary distillation of the water-free primary bottom product from the primary distillation so as to give a secondary overhead product comprising 3-methyl-1-butene and a secondary bottom product. The secondary overhead product obtained has a purity which enables it to be used directly as monomer or comonomer for preparing polymers or copolymers.
    Type: Application
    Filed: April 29, 2010
    Publication date: May 10, 2012
    Applicant: EVONIK OXENO GMBH
    Inventors: Markus Winterberg, Alfred Kaizik, Armin Rix, Michael Grass, Wilfried Bueschken, Marc Becker
  • Publication number: 20120067715
    Abstract: In a process for purifying carboxylic acids comprising halogen compounds, the carboxylic acid is distilled in the presence of a nonvolatile auxiliary base, the halide of which is liquid at the boiling temperature of the carboxylic acid. The auxiliary base binds the hydrogen halide which is present in the carboxylic acid and/or has been eliminated from halogen compounds as a result of thermal action and lowers the vapor pressure thereof in this way, such that the hydrogen halide is held in the distillation bottoms and is not transferred into the distillate. Since the halide of the auxiliary base is liquid, the formation of solid deposits in the distillation apparatus is prevented. The carboxylic acid optionally also comprises at least one low boiler.
    Type: Application
    Filed: May 19, 2010
    Publication date: March 22, 2012
    Applicant: BASF SE
    Inventors: Guenther Forster, Vijay Narayanan Swaminathan, Franz Niklaus Windlin, Thomas Leiendecker, Sebastian Peter Smidt
  • Publication number: 20120037490
    Abstract: A system for treating recovered fluids in-line that includes a thermal reactor for separating contaminated drill cuttings into drill cuttings and contaminants by applying heat to the contaminated drill cuttings so as to vaporize contaminants from the contaminated drill cuttings; a first condenser in fluid connection with the thermal reactor for condensing the vaporized contaminants; a separator in fluid connection with the first condenser for separating the condensed vapors into an oleaginous liquid and an aqueous liquid, wherein at least a portion of one of the aqueous liquid and oleaginous liquid is fed back into the first condenser via a feedback line; and an ozone generator operatively coupled to the feedback line, wherein at least the portion of the fed back liquid is ozonated by the ozone generator and fed into the condenser is disclosed.
    Type: Application
    Filed: October 24, 2011
    Publication date: February 16, 2012
    Applicant: M-I L.L.C.
    Inventors: Mukesh Kapila, Ivan Batinic, Paul Gover, Neale Browne
  • Publication number: 20120006672
    Abstract: The present invention provides a novel method for separating hexafluoropropylene oxide (HFPO) from hexafluoropropylene (HFP), which is capable of reducing the burden on the environment. A mixture including HFPO and HFP is subjected to an extractive distillation operation using, as a solvent, at least one of a fluorine-containing saturated compound represented by the general formula CnHaFb (wherein n, a and b are integers which satisfy: n=3 to 8, 0?a?2n+1, and 1?b?2n+2) thereby separating into a first fraction including HFPO and a second fraction including HFP and the solvent. At least one of 1-bromopropane and 2-bromopropane may be u as the solvent in place of the fluorine-containing saturated compound.
    Type: Application
    Filed: February 18, 2010
    Publication date: January 12, 2012
    Inventors: Hideki Nakaya, Kazuyoshi Ichihara, Yasuhide Senba, Mikio Nakagoshi, Kazunori Morimoto
  • Publication number: 20120010447
    Abstract: Recovery of ethanol from a crude ethanol product obtained from the hydrogenation of acetic acid and recovery of unreacted acetic acid from a weak acid stream. The unreacted acetic acid may be recovered as a dry acetic acid composition and may be directly or indirectly fed to the hydrogenation reactor.
    Type: Application
    Filed: April 26, 2011
    Publication date: January 12, 2012
    Applicant: CELANESE INTERNATIONAL CORPORATION
    Inventors: R. Jay WARNER, Trinity HORTON, Radmila JEVTIC, Victor J. JOHNSTON, David LEE, Adam OROSCO, Lincoln SARAGER
  • Publication number: 20120003137
    Abstract: Arsenic can be an impurity in phosphorous pentafluoride production processes. It is desirable to remove arsenic from phosphorous pentafluoride prior to using of the phosphorous pentafluoride in the production of lithium hexafluorophosphate. The present technology provides methods of removing arsenic from phosphorous pentafluoride by extractive distillation.
    Type: Application
    Filed: April 29, 2011
    Publication date: January 5, 2012
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: Ryan J. Hulse, Bernie E. Pointner
  • Patent number: 8080140
    Abstract: A process for debottlenecking a system for the separation of a conjugated diolefin the system including a first extraction section having an extractive distillation column and a stripping column and a second extraction section. The process includes the steps of withdrawing a first portion of an extract from the extractive distillation column, the extract having at least the first portion and a second portion, and transferring the first portion of the extract to a flash/separation vessel; separating the first portion of the extract into a vapor phase and a liquid phase by flashing in a flash/separation vessel; and combining the liquid phase of the separated first portion of the extract with the second portion of the extract to produce an extract feed for further processing. A system and process for the separation of a conjugated diolefin from a C4- or C5-hydrocarbon mixture containing the conjugated diolefin and higher acetylenes are also provided.
    Type: Grant
    Filed: April 18, 2007
    Date of Patent: December 20, 2011
    Assignee: Exxonmobil Chemical Patents Inc.
    Inventors: May-Ru Chen, Micheal E. Smith, Ross T. Garner
  • Publication number: 20110210289
    Abstract: Provided are ternary azeotropic and azeotrope-like compositions of 2-chloro-3,3,3-trifluoropropene (HCFO-1233xf), 2-chloro-1,1,1,2-tetrafluoropropane (HCFC-244bb), and hydrogen fluoride (HF). Such azeotropic and azeotrope-like compositions are useful as intermediates in the production of 2,3,3,3-tetrafluoropropene (HFO-1234yf).
    Type: Application
    Filed: March 18, 2009
    Publication date: September 1, 2011
    Inventors: DANIEL C. MERKEL, Konstantin A. Pokrovski, Hsuehsung Tung, Hang T. Pham, Rajiv R. Singh
  • Publication number: 20110190510
    Abstract: The invention relates to a process for purifying trifluoromethanesulfinic acid by azeotropic distillation with an aromatic solvent, to processes for preparing purified trifluoromethanesulfinic acid and to the use of the purified trifluoronnethanesulfinic acid for preparing trifluoromethylsulfinylated pyrazole derivatives, especially fipronil.
    Type: Application
    Filed: September 28, 2009
    Publication date: August 4, 2011
    Applicant: BASF SE
    Inventors: Martin Sukopp, Alexander Korte, Stefan Fülster, Michael Keil, Michael Rack
  • Patent number: 7907283
    Abstract: The invention relates to a process for determining the total oxygen content and the total carbon content in ammonia, in which ammonia is first split into nitrogen and hydrogen, then the oxygen still present in the ammonia is reacted essentially fully with hydrogen to give water and the carbon still present is reacted essentially fully with hydrogen to give methane. In a next step, the water content and the methane content in the gas are determined. Finally, the total oxygen content is determined from the water content and the total carbon content from the methane content. The invention further relates to an apparatus for performing the process, which comprises a cracker for splitting the ammonia and for converting the oxygen- and/or carbon-comprising compounds, and at least one cavity ring-down spectrometer for detecting the water content and/or carbon content.
    Type: Grant
    Filed: March 22, 2007
    Date of Patent: March 15, 2011
    Assignee: BASF SE
    Inventors: Karl-Heinz Wostbrock, Walther Schmid
  • Publication number: 20110005915
    Abstract: The invention relates to a method for recovering fluorocarboxylic acids from aqueous compositions containing said acids. The invention more particularly relates to the recovery of flourocarboxylic acids forming an azeotrope with water by contact with a strong acid.
    Type: Application
    Filed: September 25, 2008
    Publication date: January 13, 2011
    Applicant: Rhodia Operations
    Inventors: Claude Mercier, Francois Metz
  • Publication number: 20100264013
    Abstract: A system and method for separating a fluid mixture is provided which employ vacuum distillation apparatus, and optionally, gas-handling apparatus operable to introduce a gas into the liquid mixture prior to being dispersed within the vacuum distillation apparatus. The liquid mixture is dispersed within the vacuum distillation apparatus as micro-sized droplets. When used, the gas that has been introduced into the liquid mixture is rapidly liberated from the micro-sized droplets thereby causing the droplets to break into still smaller droplets thereby maximizing the vaporization of the more volatile components in the liquid mixture.
    Type: Application
    Filed: April 12, 2010
    Publication date: October 21, 2010
    Inventor: Sam J. BURTON
  • Publication number: 20100187088
    Abstract: The invention provides a method for separating halocarbons. In particular, a method for separating 2-chloro-1,1,1,2-tetrafluoropropane (HCFC-244bb) from 2-chloro-3,3,3-trifluoropropene (HCFC-1233xf) by adding a third component and then separating via conventional distillation. More particularly the invention pertains to a method for separating HCFC-244bb from HCFC-1233xf which are useful as intermediates in the production of 2,3,3,3-tetrafluoropropene (HFO-1234yf).
    Type: Application
    Filed: March 29, 2010
    Publication date: July 29, 2010
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: Daniel C. Merkel, Konstantin A. Pokrovski, Hsueh S. Tung, Hang T. Pham, Rajiv R. Singh
  • Patent number: 7709135
    Abstract: A method is provided for recovering a catalytic element from a fuel cell membrane electrode assembly. The method includes grinding the membrane electrode assembly into a powder, extracting the catalytic element by forming a slurry comprising the powder and an acid leachate adapted to dissolve the catalytic element into a soluble salt, and separating the slurry into a depleted powder and a supernatant containing the catalytic element salt. The depleted powder is washed to remove any catalytic element salt retained within pores in the depleted powder and the catalytic element is purified from the salt.
    Type: Grant
    Filed: June 6, 2008
    Date of Patent: May 4, 2010
    Assignee: BASF Corporation
    Inventors: Lawrence Shore, Ramail Matlin, Robert Heinz
  • Publication number: 20100025220
    Abstract: A process for extractive distillation, including: feeding a solvent to an extractive distillation column via a solvent feeding inlet, wherein the solvent has a feeding temperature 3.5-22.5° C. higher than a top temperature of the extractive distillation column; feeding a mixture comprising a light component and a heavy component to the extractive distillation column via a mixture feeding inlet, wherein the mixture is liquid, and the mixture feeding inlet is lower than the solvent feeding inlet; condensing a vapor generated by the mixture in an upper portion of the extractive distillation column to obtain the light component; and separating the solvent in a lower portion of the extractive distillation column to obtain the heavy component.
    Type: Application
    Filed: August 5, 2008
    Publication date: February 4, 2010
    Inventor: Baojun Dong
  • Publication number: 20100018849
    Abstract: A method of removing trace levels of arsenic-containing impurities from raw triethylphosphate (TEPO) is disclosed. The method uses adsorption, or adsorption followed by a flash distillation. The method comprises contacting raw triethylphosphate (TEPO) with an adsorbent which selectively adsorbs the arsenic-containing impurities in the raw triethylphosphate (TEPO). The adsorbent is a base promoted alumina containing adsorbent represented by a formula: ZxWy; where x is the weight percentage of Z in the adsorbent ranging from 30% to 99.999%; y is the weight percentage of W in the adsorbent, and x+y=100%; Z is selected from the group consisting of alumina (Al2O3), magnesium-alumina based layered double hydroxide (MgO—Al2O3), alumina-zeolite, and mixtures thereof; and W is selected from the group consisting of at least one basic metal oxide, at least one basic metal carbonate, and mixtures thereof.
    Type: Application
    Filed: July 25, 2008
    Publication date: January 28, 2010
    Applicant: AIR PRODUCTS AND CHEMICALS, INC.
    Inventors: Steven Gerard Mayorga, Heather Regina Bowen, Kelly Ann Chandler
  • Publication number: 20090256110
    Abstract: Provided are ternary azeotropic and azeotrope-like compositions of 2-chloro-3,3,3-trifluoropropene (HCFO-1233xf), 2-chloro-1,1,1,2-tetrafluoropropane (HCFC-244bb), and hydrogen fluoride (HF). Such azeotropic and azeotrope-like compositions are useful as intermediates in the production of 2,3,3,3-tetrafluoropropene (HFO-1234yf).
    Type: Application
    Filed: March 18, 2009
    Publication date: October 15, 2009
    Inventors: DANIEL C. MERKEL, Konstantin A. Pokrovski, Hsuehsung Tung, Hang T. Pham, Rajiv R. Singh
  • Patent number: 7598405
    Abstract: The present invention provides a process for distillatively purifying tetrahydrofuran in the presence of a polar solvent.
    Type: Grant
    Filed: September 21, 2005
    Date of Patent: October 6, 2009
    Assignee: BASF Aktiengesellschaft
    Inventors: Gunther Windecker, Alexander Weck, Markus Roesch, Michael Steiniger, Rolf Pinkos, Dany Vanden Hautte
  • Patent number: 7485208
    Abstract: Process for working up a bottom stream wherein high boilers and ionic liquid from an extractive rectification in which the ionic liquid is used as entrainer. The process includes feeding the bottom stream to an evaporation stage which is operated at a pressure of less than 500 mbar or to a stripper which is operated through use of inert gas or steam, and the major part of the high boiler present is separated off in vapor form from the ionic liquid.
    Type: Grant
    Filed: July 15, 2004
    Date of Patent: February 3, 2009
    Assignee: BASF Aktiengesellschart
    Inventors: York Alexander Beste, Hartmut Schoenmakers, Wolfgang Arlt, Matthias Seiler, Carsten Jork
  • Publication number: 20080257711
    Abstract: A process for debottlenecking a system for the separation of a conjugated diolefin the system including a first extraction section having an extractive distillation column and a stripping column and a second extraction section. The process includes the steps of withdrawing a first portion of an extract from the extractive distillation column, the extract having at least the first portion and a second portion, and transferring the first portion of the extract to a flash/separation vessel; separating the first portion of the extract into a vapor phase and a liquid phase by flashing in a flash/separation vessel; and combining the liquid phase of the separated first portion of the extract with the second portion of the extract to produce an extract feed for further processing. A system and process for the separation of a conjugated diolefin from a C4- or C5-hydrocarbon mixture containing the conjugated diolefin and higher acetylenes are also provided.
    Type: Application
    Filed: April 18, 2007
    Publication date: October 23, 2008
    Inventors: May-Ru Chen, Micheal E. Smith, Ross T. Garner
  • Patent number: 7410555
    Abstract: A process for reacting a first component with itself or a second component to produce a third component in which a first material comprising a first component or said first component and a second component is fed to divided wall column having a catalytic distillation structure in at least one of the separate vertical sections of the divided wall column where concurrently: (1) a first component alone or with a second component is contacted with a catalytic distillation structure in a distillation reaction zone thereby catalytically reacting at least a portion of the first component with itself or with the second component to form a product and (2) a first mixture comprising the first component and the product or the first component, the second component and the product; and withdrawing the product from the distillation column reactor; while within the column concurrently with the catalytic reaction and fractionation a second mixture is fractionated, which contains the first component and the product or first a
    Type: Grant
    Filed: May 5, 2004
    Date of Patent: August 12, 2008
    Assignee: Catalytic Distillation Technologies
    Inventors: Willibrord A. Groten, Mario J. Maraschino